.babelrc

{
    "presets": ["@babel/preset-env", "@babel/preset-react"],
    "plugins": [
        [
            "@babel/transform-runtime",
            {
                "absoluteRuntime": false,
                "corejs": false,
                "helpers": true,
                "regenerator": true,
                "useESModules": false
            }
        ],
        [
            "@babel/plugin-proposal-decorators", 
            { 
                "legacy": true 
            }
        ],
        [
            "@babel/proposal-class-properties",
            {
                "loose": true
            }
        ],
        [
            "import", 
            {
                "libraryName": "antd",
                "libraryDirectory": "es",
                "style": "css" // `style: true` 会加载 less 文件
            }
        ],
        [
            "babel-plugin-root-import", 
            {
                "paths": [
                    {
                        "rootPathPrefix": "~"
                    }
                ]
            }
        ]
    ],
    "ignore": [
        "src/modules/preload/*.js"
    ]
}